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Stabilization of Zirconia Sintered with Titanium
Author(s) -
LIN C.L.,
GAN D.,
SHEN P.
Publication year - 1988
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1988.tb06379.x
Subject(s) - materials science , cubic zirconia , thermal shock , grain size , titanium , dissolution , tetragonal crystal system , phase (matter) , sintering , metallurgy , chemical engineering , ceramic , chemistry , organic chemistry , engineering
Electron and X‐ray diffraction studies show that zirconia sintered with 5 to 15 mol% titanium under a vacuum of 10 −1 to 10 −2 torr (∼13 to 1.3 Pa) was partially stabilized as cubic and tetragonal phases, whose amounts increase with increasing Ti content. The stabilization of ZrO 2 is due to the dissolution of TiO which forms as a second phase in the sintered specimen. The grain size of ZrO 2 decreases with increase in Ti. The improvements in strength and thermal shock resistance of ZrO 2 sintered with Ti are attributed to the reduction in ZrO 2 grain size and the effect of partial stabilization.